*"* local class implementation for public class *"* use this source file for the implementation part of *"* local helper classes *"* use this source file for any type declarations (class *"* definitions, interfaces or data types) you need for method *"* implementation or private method's signature *"* use this source file for any macro definitions you need *"* in the implementation part of the class ABAP method CONSTRUCTOR. " Initialise instance variables formula1 = ''. formula2 = ''. type = me->c_type_none. errorstyle = me->c_style_stop. operator = ''. allowblank = abap_false. showdropdown = abap_false. showinputmessage = abap_true. showerrormessage = abap_true. errortitle = ''. error = ''. prompttitle = ''. prompt = ''. * inizialize dimension range cell_row = 1. cell_column = 'A'. endmethod.